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我厂生产的182 F汽油发动机连杆,材料为LY 11。关于铝合金的锻造工艺规范有关资料介绍得很少,并且很笼统,难于满足生产实际需要。经过儿年的实践摸索,我们有如下经验与体会。一、坯料处理我们使用的坯料是挤压棒料,锯床下料。因挤压棒料表面有一层粗晶环,直接锻打易产生裂纹,故需先用车床剥皮,把直径车小1mm左右。原先为避免调头车时产生接刀痕,须在一端打中心孔,这样便增加了平车端面的工序和材料的消
I produced 182 F gasoline engine connecting rod, the material is LY 11. About the forging process of aluminum alloy for the introduction of the relevant information is very small, and very general, difficult to meet the actual production needs. After years of practice to explore, we have the following experience and experience. First, the billet processing we use the blank is extruded bar, sawing cutting. Extruded bar surface has a layer of coarse crystal ring, easy to crack directly forged, it is necessary to first use the lathe peeling, the diameter of small car about 1mm. Originally in order to avoid the transfer of vehicles generated when the access mark, to be hit at one end of the center hole, it will increase the flat end of the process and material consumption